Home / 47,019.60-70,529.40-28,357.20

Finding the Fourth Proportional to 47,019.60, 70,529.40 and 28,357.20

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Solution

The fourth proportional to 47,019.60, 70,529.40 and 28,357.20 is: 42,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,019.60 : 70,529.40 = 28,357.20 : x
  2. Step 2: Convert to fraction form
    47,019.60/70,529.40 = 28,357.20/x
  3. Step 3: Cross multiply
    47,019.60x = 70,529.40 × 28,357.20
  4. Step 4: Simplify right side
    47,019.60x = 2,000,016,301.68
  5. Step 5: Solve for x
    x = 2,000,016,301.68/47,019.60
  6. Step 6: Final answer
    x = 42,535.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.